I think I've messed up the fan speeds of my MacBook. I can't change the values anymore by smcFanControl. It stays at 2500 rpm no matter what I enter in the field. Here's what I've done: First I installed smcFanControl 1.23, which worked nice. After a while I discovored Fan Control, which turned out to be a really confusing program. There weren't any documents in the installation package and I couldn't find any help from the program's home page. It took quite a while to realize where it even installed itself (i.e. in System Preferences) Because Fan Control was such a disappointment, I decided to go back to smcFanControl. At least it's so simple you can't go wrong with it. Though now I found out that there's a 2.x.x version too. So I installed it, and found it to be too restricted. You can't enter RPM values anymore, you have to save preset options. So I changed back to 1.23. However smcFanControl doesn't work anymore. When I enter and apply new RPM values, the fans don't co-operate. I suppose this has something to do with Fan Control. I haven't found out how to uninstall it though. Any help?